Dr. Zachary Alexander Sesonsky, MD
- Medicare services, 2024
- 18
- Medicare patients, 2024
- 116
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Industry payments
- $99
- Practice address
- 20 York Street, New Haven, CT 06510
- Practice phone
- Call (203) 688-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale New Haven Psychiatric Hospital (York St)
Psychiatric Inpatient Facility · New Haven, Connecticut
Find Dr. Sesonsky's professional email, personal email and mobile number
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Dr. Zachary Alexander Sesonsky is an anesthesiologist in New Haven, Connecticut
Dr. Sesonsky practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.
Dr. Sesonsky's NPI, 1114458494, was assigned on March 27, 2017. Dr. Sesonsky graduated from Northeastern Ohio University College of Medicine in 2017. Dr. Sesonsky holds Connecticut license 1.076857.
- NPI
- 1114458494NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062782121
- NPI enumeration date
- March 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 688-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary Alexander Sesonsky practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut
Dr. Sesonsky's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.
- Yale New Haven Psychiatric Hospital (York St)20 York Street, New Haven, CT 06510Phone(203) 688-5900
Source: Dmand AI Affiliation Data
Dr. Zachary Alexander Sesonsky is affiliated with 3 sites of care and 2 medical groups
Dr. Sesonsky's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dr. Sesonsky is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Sesonsky to 1 more hospital and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zachary Alexander Sesonsky's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sesonsky practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale New Haven Psychiatric Hospital (York St) | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary Alexander Sesonsky is one of 654 anesthesiologists in Connecticut
Anesthesiology is Dr. Sesonsky's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Sesonsky's licenses on file in 2 states: Connecticut and Ohio.
Specialties and state licenses
- Anesthesiology, ConnecticutPrimary
- Ohio license
Anesthesiologists near Dr. Sesonsky
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Zachary Alexander Sesonsky billed Medicare for 18 services in 2024
CMS data shows 18 Medicare services from Dr. Sesonsky across 1 procedure code in 2024, for 116 Medicare patients. Medicare paid $601 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sesonsky's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 202024: 1810%
- Anesthesia
- 2023: 112024: 0100%
- Imaging
- 2023: 202024: 0100%
Dr. Sesonsky compared with the Connecticut median for anesthesiologists, 2024
- Dr. Sesonsky
- Connecticut median
- Medicare services
- 18vs 8980% below
- Medicare patients
- 116vs 16028% below
Medians across 636 anesthesiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Sesonsky's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Alexander Sesonsky treated 116 Medicare patients in 2024, average age 70
CMS counts 116 Medicare patients who saw Dr. Sesonsky in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sesonsky's median patient age at 66, with 48% women.
Dr. Sesonsky's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sesonsky's Medicare patients by sex, 2024
- Women4438%
- Men7262%
Chronic conditions among Dr. Sesonsky's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease48%
- Chronic kidney disease40%
- Diabetes36%
- Anxiety35%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sesonsky's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women48%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary Alexander Sesonsky scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Sesonsky for performance year 2024, reported as part of a group. Dr. Sesonsky accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Sesonsky's MIPS scores, performance year 2024
- 87of 100Final score
- 77.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Zachary Alexander Sesonsky received $99 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Sesonsky from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. enableCV Inc. paid the most, $99.
Companies that paid Dr. Sesonsky the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Alexander Sesonsky graduated from Northeastern Ohio University College of Medicine
Dr. Sesonsky graduated from Northeastern Ohio University College of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary Alexander Sesonsky's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Zachary Alexander Sesonsky
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Zachary Alexander Sesonsky's NPI number?
Dr. Zachary Alexander Sesonsky's NPI number is 1114458494. It was assigned on March 27, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Alexander Sesonsky?
Dr. Zachary Alexander Sesonsky is an anesthesiologist in New Haven, Connecticut. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Zachary Alexander Sesonsky practice?
Dr. Sesonsky practices at 20 York Street, New Haven, CT 06510. Dr. Sesonsky's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dmand AI also links Dr. Sesonsky to 1 hospital and 1 medical group.
What is Dr. Zachary Alexander Sesonsky's office phone number?
The practice phone on file for Dr. Sesonsky is (203) 688-5900.
What is Dr. Zachary Alexander Sesonsky's medical license number?
Dr. Sesonsky holds Connecticut license 1.076857, one of the licenses on file in 2 states.
Which states has Dr. Zachary Alexander Sesonsky been licensed in?
Dmand AI has state licenses on file for Dr. Sesonsky in Connecticut and Ohio.
Which hospitals is Dr. Zachary Alexander Sesonsky affiliated with?
Dr. Sesonsky is affiliated with Yale New Haven Hospital. Dmand AI links Dr. Sesonsky to 1 more hospital.
What medical group is Dr. Zachary Alexander Sesonsky part of?
Dr. Sesonsky is linked to Yale Health. Dmand AI links Dr. Sesonsky to 1 more medical group.
Does Dr. Zachary Alexander Sesonsky accept Medicare?
Yes. CMS data shows Dr. Sesonsky billed Medicare for 18 services in 2024, and Dr. Sesonsky accepts Medicare assignment.
What is Dr. Zachary Alexander Sesonsky's MIPS score?
Dr. Sesonsky's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Zachary Alexander Sesonsky see?
CMS counts 116 Medicare patients who saw Dr. Sesonsky in 2024, with an average age of 70.
What services does Dr. Zachary Alexander Sesonsky bill to Medicare?
In 2024, Dr. Sesonsky's most billed Medicare services were surgery: heart and blood vessels (36620).
Where did Dr. Zachary Alexander Sesonsky go to medical school?
Dr. Sesonsky graduated from Northeastern Ohio University College of Medicine in 2017.
Has Dr. Zachary Alexander Sesonsky received payments from drug or device companies?
CMS Open Payments shows $99 in general payments to Dr. Sesonsky from 1 company from 2025 to 2025. The largest total came from enableCV Inc.
How long has Dr. Zachary Alexander Sesonsky been practicing?
Dr. Sesonsky graduated from medical school in 2017, 9 years ago.
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